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H3C Constructing Small - and Medium - Sized Enterprise Network Sample Questions:

1. 提供端到端可靠数据传输和流量控制的是 OSI 参考模型的 ______ 。

A) 表示层
B) 网络层
C) 会话层
D) 传输层

2. 链路聚合的作用是 ______ 。

A) 增加链路带宽。
B) 可以避免交换网环路。
C) 增加了交换机间的链路可靠性。
D) 可以实现数据的负载均衡。

3. 要在路由器上配置一条静态路由。已知目的地址为 192.168.1.0 ,掩码是 20 位,出接口为 GigabitEthernet0/0 ,出接口 IP 地址为 10.10.202.1 ,那么下列配置中哪些是正确的 ?

A) ip route-static 192.168.1.0 255.255.240.0 GigabitEthernet0/0
B) ip route-static 192.168.1.0 255.255.248.0 10.10.202.1
C) ip route-static 192.168.1.0 255.255.248.0 GigabitEthernet0/0
D) ip route-static 192.168.1.0 255.255.240.0 10.10.202.1

4. 两台 MSR 路由器分别通过以太网、串行接口相连,如图所示。串行链路上运行 PPP 链路层协议,两台路由器上运行了 OSPF ,而且都属于 Area 0 ,同时在 Area 0 中通过 network 命令发布了每台路由器上的三个网段（ GE 接口网段、串行接口网段、 LAN 网段)；
目前两端 OSPF 邻居状态稳定,那么 ______ 。（多选)

A) 如果没有修改 OSPF Cost 值,那么 RTA 到达 RTB 的 LAN 网段将优选 GE 链路
B) 只要正确修改两台路由器 GE 接口和串行接口的 OSPF Cost 值,那么在 RTA 、 RTB 上将能形成到达对方 LAN 的两条等值路由
C) 在 GE 链路上, RTA 、 RTB 依然会进行 DR 、 BDR 的选举
D) 以上说法均正确

5. 如下关于路由的描述正确的是 ______ 。（多选)

A) IGP 是一种基于 D-V 算法的路由协议
B) 直连路由的优先级不可手动修改
C) 路由收敛指全网中路由器的路由表达到一致
D) 一条完整的路由至少要包括掩码、目的地址、下一跳

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